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stretch wrapping

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Published: 01 July 2009
Fig. 20.11 Illustrations of techniques involved in the four basic methods of stretch forming: (a) and (b) stretch draw forming, (c) stretch wrapping, (d) compression forming, and (e) radial-draw forming. Source: ASM 1988b More
Image
Published: 01 January 2015
Fig. 11.4 Process for stretch forming angle shapes. Sketch illustrates (a) inboard and (b) outboard wrap techniques. More
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2013
DOI: 10.31399/asm.tb.mfub.t53740163
EISBN: 978-1-62708-308-9
... Abstract This chapter describes sheet metal forming operations, including cutting, blanking, piercing, and bending as well as deep drawing, spinning, press-brake and stretch forming, fluid forming, and drop hammer and electromagnetic forming. It also discusses the selection and use of die...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.tb.ems.t53730139
EISBN: 978-1-62708-283-9
.... Shrink-wrapping uses films of PVC or low-density PE that have been stretched biaxially during manufacture. On heating they tend to contract, so if wrapped around an object and heated with hot air, they shrink to form a tight package. The same phenomenon is used to make tubes that serve as electrical...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.tpmpa.t54480243
EISBN: 978-1-62708-318-8
... 13V-11Cr-3Al: 16 6Al-4V: 13 5Al-2.5Sn: 13 15V-3Cr-3Al-3Sn: 10 13V-11Cr-3Al: 10 6Al-4V: 5 5Al-2.5Sn: 5 15V-3Cr-3Al-3Sn: 5 13V-11Cr-3Al: 5 6Al-4V: 4 5Al-2.5Sn: 3 Joggle (runout/depth ratio) Stretch wrap (max) at room temperature, % Skin stretch (max...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.tb.ems.t53730099
EISBN: 978-1-62708-283-9
... temperatures, additives, and the effect of stretching on thermoplastics. degradation branching polymers copolymers cross-linking polymers molecular configuration thermoplastics thermosetting polymers chemical additives THE WORD polymer is the scientific name for what is commonly called...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230295
EISBN: 978-1-62708-298-3
... classic deep drawing are rare. Normally, the deformation is a combination of deep drawing and stretching. That is, deformation occurs in the bottom of the cup in the form of thinning, and thickening of the flange is minimized as a result of the stretching. Since beryllium usually exhibits limited triaxial...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240279
EISBN: 978-1-62708-251-8
... of stretch forming include stretch draw forming, stretch wrapping, and radial draw forming. Forming lubricants are recommended except when self-lubricating, smooth-faced plastic dies are used; however, the use of too much lubricant can result in workpiece bucking. Material properties that help in stretch...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smff.t53400005
EISBN: 978-1-62708-316-4
... sections, and extrusions around form blocks (dies) to produce accurately countered parts without wrinkles. Usually, two opposite ends of the work piece are gripped in jaws and pulled or wrapped around the form block ( Fig. 2.23 ): Equipment: stretch forming machines Materials: aluminum alloys...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.tb.tt2.t51060155
EISBN: 978-1-62708-355-3
... of polymers that display the ability to stretch and recover that is typical of a rubber band. This chapter describes the properties determined by tensile testing of elastomers and the factors influencing them, namely, structuring of the molecular matrix, compounding, specimen preparation, specimen type...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 June 2023
DOI: 10.31399/asm.tb.atia.t59340339
EISBN: 978-1-62708-427-7
... to be used for packaging applications. Source: European Aluminium Foil Association ALUMINUM ROLLED PRODUCTS are a material of choice for a myriad of packaging applications. The list includes beverage and food cans, aerosols, tubes, bottle caps, foil trays, capsules, lids, and household wrap. The sheet...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2013
DOI: 10.31399/asm.tb.uhcf3.t53630281
EISBN: 978-1-62708-270-9
... and shape after being stretched or squeezed; springy. elasticity. The property of being elastic. elastic limit. The maximum stress to which a material may be subjected with no permanent deformation after release of the applied load. elastic-plastic fracture mechanics. A design approach used for materials...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smff.t53400233
EISBN: 978-1-62708-316-4
... other holes or sur- faces. Sometimes referred to as a point of origin or coordinating hole. contour forming See roll forming, stretch forming, and tangent bending. contouring Machining surface shape on die members. Also called Kellering. control factors Factors that can be assigned at specific levels...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smff.9781627083164
EISBN: 978-1-62708-316-4
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 September 2023
DOI: 10.31399/asm.tb.stmflw.t59390389
EISBN: 978-1-62708-459-8
... Abstract This chapter covers the mechanics and tribology of sheet metalworking processes, including shearing, bending, spinning, stretching, deep drawing, ironing, and hydroforming. It explains how to determine friction, wear, and lubrication needs based on process forces, temperatures...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 June 2023
DOI: 10.31399/asm.tb.atia.t59340211
EISBN: 978-1-62708-427-7
... Stretch drawing and deep drawing of aluminum sheet are key forming requirements for a variety of stamped part shapes (e.g., automotive body panels). Figure 10.4 illustrates the important distinction between the two modes of forming. In deep drawing, the sheet flows into the die to form the cup...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.tb.ems.9781627082839
EISBN: 978-1-62708-283-9
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2005
DOI: 10.31399/asm.tb.horfi.t51180197
EISBN: 978-1-62708-256-3
... specimens. Opposite of static, or essentially stationary, testing or service. E elastic. Able to return immediately to the original size and shape after being stretched or squeezed; springy. elasticity. The property of being elastic. elastic limit. The maximum stress a material is capable of sustaining...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2005
DOI: 10.31399/asm.tb.horfi.9781627082563
EISBN: 978-1-62708-256-3
Series: ASM Technical Books
Publisher: ASM International
Published: 30 June 2023
DOI: 10.31399/asm.tb.atia.t59340375
EISBN: 978-1-62708-427-7
... for a window assembly. Although extruded shapes are stretched slightly for straightness prior to aging, the cost of manual straightening and rework cannot be supported in this competitive market. These 6 xxx aluminum extrusions can be used in a variety of tempers, from O to T6 and others in between...